/* 9speed — giao diện tối, chữ to, tối ưu cho việc liếc nhìn khi đang lái xe. */

:root {
  --bg: #0b1220;
  --panel: #111a2e;
  --panel-2: #16223c;
  --line: #24314f;
  --text: #e8eefc;
  --muted: #93a4c6;
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f43f5e;
  --accent: #38bdf8;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  color-scheme: dark;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100dvh;
}

/* ---------- Bản đồ chiếm toàn bộ phần còn lại ---------- */
.map-wrap { position: relative; flex: 1 1 auto; min-height: 0; }
#map { position: absolute; inset: 0; background: #0f172a; }

/* HUD chồng lên bản đồ — không chiếm chiều cao flex */
.hud {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 700;
  pointer-events: none;
  padding-top: var(--safe-top);
  background: linear-gradient(180deg, rgba(11, 18, 32, .88) 0%, rgba(11, 18, 32, .42) 62%, transparent 100%);
}
.hud > * { pointer-events: auto; }

/* ---------- Thanh trạng thái ---------- */
.statusbar {
  display: flex;
  gap: 6px;
  padding: 6px 8px 2px;
  align-items: center;
  overflow-x: auto;
  scrollbar-width: none;
  background: transparent;
}
.statusbar::-webkit-scrollbar { display: none; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  padding: 4px 9px;
  border-radius: 999px;
  background: rgba(17, 26, 46, .82);
  border: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
  white-space: nowrap;
  backdrop-filter: blur(8px);
}
.chip.road {
  flex: 0 1 auto;
  max-width: min(48vw, 280px);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
  font-weight: 600;
}
.chip .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--muted);
  box-shadow: 0 0 0 0 rgba(52, 211, 153, .6);
}
.chip.live .dot { background: var(--ok); animation: pulse 2s infinite; }
.chip.stale .dot { background: var(--warn); }
.chip.err .dot { background: var(--danger); }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(52, 211, 153, .55); }
  70%  { box-shadow: 0 0 0 7px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

/* ---------- Đồng hồ tốc độ (gọn, overlay) ---------- */
.hero {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px;
  padding: 4px 10px 10px;
  background: transparent;
  transition: background .25s ease;
}
.hero.over {
  background: linear-gradient(180deg, rgba(59, 13, 28, .78) 0%, transparent 100%);
  animation: flash 1s ease-in-out infinite;
}
@keyframes flash {
  0%, 100% { box-shadow: inset 0 0 0 0 rgba(244, 63, 94, 0); }
  50%      { box-shadow: inset 0 0 40px 0 rgba(244, 63, 94, .35); }
}

.speed-block { display: flex; flex-direction: column; min-width: 0; }
.speed-row { display: flex; align-items: baseline; gap: 8px; }
.speed-value {
  font-size: clamp(40px, 12vw, 64px);
  font-weight: 800;
  line-height: .92;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.03em;
  transition: color .2s ease;
  text-shadow: 0 1px 8px rgba(11, 18, 32, .8);
}
.hero.over .speed-value { color: var(--danger); }
.speed-unit { font-size: 13px; color: var(--muted); letter-spacing: .12em; }
.speed-sub {
  margin-top: 2px;
  font-size: 12px;
  color: var(--muted);
  max-width: 55vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.limit-block { display: flex; flex-direction: column; align-items: center; gap: 4px; flex: 0 0 auto; }
.limit-sign {
  width: clamp(52px, 15vw, 68px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: #fff;
  border: 6px solid #d61f26;
  display: grid;
  place-items: center;
  color: #111;
  font-weight: 800;
  font-size: clamp(20px, 6.5vw, 28px);
  font-variant-numeric: tabular-nums;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .45);
}
.limit-sign.unknown { border-color: #64748b; color: #64748b; background: #e2e8f0; }
.limit-sign.law { border-color: #e4852b; }
.limit-source { font-size: 10px; color: var(--muted); text-align: center; max-width: 110px; }

/* ---------- Tuyến có camera giám sát ---------- */
.corridor {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 8px 8px;
  padding: 7px 10px;
  border-radius: 10px;
  background: rgba(59, 42, 8, .92);
  border: 1px solid #6b4f12;
  color: #fde68a;
  font-size: 13px;
  font-weight: 600;
}
.corridor-icon { font-size: 16px; }

/* ---------- Băng cảnh báo ---------- */
.alerts { padding: 0 8px 10px; }
.alert-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(22, 34, 60, .92);
  border: 1px solid var(--line);
  border-left: 4px solid var(--warn);
  border-radius: 12px;
  padding: 10px 12px;
}
.alert-item.sev-3 { border-left-color: var(--danger); }
.alert-icon { font-size: 22px; }
.alert-text { flex: 1; font-size: 15px; font-weight: 600; }
.alert-dist { font-size: 15px; font-weight: 700; color: var(--accent); font-variant-numeric: tabular-nums; }
.alert-more { font-size: 12px; color: var(--muted); padding: 6px 4px 0; }

/* ---------- Bản đồ (Leaflet) ---------- */
.leaflet-container { font-family: inherit; background: #0f172a; }
.leaflet-control-attribution { font-size: 10px; background: rgba(11, 18, 32, .75) !important; color: var(--muted) !important; }
.leaflet-control-attribution a { color: var(--accent) !important; }
.leaflet-bottom.leaflet-left { bottom: 8px; left: 8px; }

.island-label { background: none !important; border: none !important; }
.island-label-inner {
  text-align: center;
  color: #fde68a;
  text-shadow: 0 1px 2px #0b1220, 0 0 6px #0b1220;
  line-height: 1.15;
  white-space: nowrap;
  pointer-events: none;
}
.island-label-inner strong { display: block; font-size: 12px; font-weight: 700; }
.island-label-inner span { font-size: 10px; color: #e8eefc; }

.veh-arrow {
  display: block;
  width: 28px;
  height: 38px;
  margin: 1px auto;
  overflow: visible;
  transform-origin: 50% 70%;
  transition: transform .3s ease-out;
  filter: drop-shadow(0 2px 3px rgba(0, 0, 0, .75));
}
.veh-arrow path {
  fill: #ffcc00;
  stroke: #111827;
  stroke-width: 2.1;
  stroke-linejoin: round;
}
.poi-bubble {
  width: 28px; height: 28px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 15px;
  background: #fff7ed;
  border: 2px solid var(--warn);
  box-shadow: 0 2px 6px rgba(0, 0, 0, .5);
}
.poi-bubble.sev-3 { border-color: var(--danger); background: #fee2e2; }

.recenter, .sim-hint { position: absolute; z-index: 500; }
.recenter {
  right: 10px; bottom: 14px;
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(17, 26, 46, .92);
  color: var(--accent);
  font-size: 22px;
  cursor: pointer;
}
.sim-hint {
  left: 70px; right: 64px; bottom: 16px;
  background: rgba(17, 26, 46, .92);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 12px;
  color: var(--text);
}

/* ---------- Thanh công cụ ---------- */
.toolbar {
  display: flex;
  gap: 8px;
  padding: 8px 10px calc(8px + var(--safe-bottom));
  background: var(--panel);
  border-top: 1px solid var(--line);
  flex: 0 0 auto;
}
.btn {
  flex: 0 0 auto;
  min-width: 52px;
  height: 48px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
}
.btn:active { transform: scale(.97); }
.btn.active { outline: 2px solid var(--accent); }
.btn.off { opacity: .45; }
.btn.ghost { background: transparent; border: none; font-size: 20px; }
.btn.wide { width: 100%; height: 42px; font-size: 14px; }

/* ---------- Bảng cài đặt ---------- */
.sheet-backdrop { position: fixed; inset: 0; background: rgba(0, 0, 0, .55); z-index: 900; }
.sheet {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 901;
  max-height: 86dvh;
  overflow-y: auto;
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-radius: 18px 18px 0 0;
  padding: 4px 16px calc(20px + var(--safe-bottom));
}
.sheet-head { display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; background: var(--panel); padding: 10px 0; }
.sheet-head h2 { font-size: 17px; margin: 0; }
.row {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.row.column { flex-direction: column; align-items: stretch; gap: 8px; }
.row select {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px;
  padding: 8px 10px; font-size: 14px; max-width: 58%;
}
.row input[type="checkbox"] { width: 22px; height: 22px; accent-color: var(--accent); }
.row input[type="range"] { width: 100%; accent-color: var(--accent); }
.note { font-size: 12px; color: var(--muted); margin: 0; }

.legend { padding: 14px 0 0; font-size: 12.5px; color: var(--muted); line-height: 1.55; }
.legend h3 { font-size: 13px; color: var(--text); margin: 0 0 8px; }
.legend p { margin: 0 0 8px; }
.legend code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; font-size: 11.5px; }
.src-osm { color: var(--ok); }
.src-law { color: var(--warn); }
.warn { color: #fda4af; }

@media (min-width: 720px) {
  .speed-sub { max-width: 40vw; }
  .sheet { left: 50%; transform: translateX(-50%); max-width: 520px; border-radius: 18px 18px 0 0; }
}

[hidden] { display: none !important; }

.chip.corridor-chip {
  color: #fde68a;
  border-color: #6b4f12;
  background: rgba(59, 42, 8, .9);
}

.limit-sign.law {
  border-style: dashed;
  border-color: #e4852b;
  background: #fff7ed;
}

.toast {
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 12px;
  z-index: 650;
  pointer-events: none;
}
.toast .alert-item {
  pointer-events: auto;
  padding: 8px 10px;
  background: rgba(17, 26, 46, .94);
}
.alert-icon { font-size: 16px; }
.alert-text { font-size: 14px; }
.alert-dist { font-size: 14px; white-space: nowrap; }

.toolbar .tool-icon {
  width: 20px; height: 20px;
  fill: none; stroke: currentColor;
  stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
  flex-shrink: 0;
}
.toolbar > .btn {
  flex: 1 1 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; font-size: 10px; min-width: 52px;
}
.toolbar > .btn span { font-size: 10px; font-weight: 500; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}